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Home > Industrial Equipment & Components > Fastener & Fitting > Screw > Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness thumbnail-3

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness thumbnail-4

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness thumbnail-5

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness photo-1

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness photo-2

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness photo-3

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness photo-4

Factory Direct Roof Screws Yellow Zinc Hex Head With EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness photo-5

Product Spotlights

Factory-direct high hardness C1022A carbon steel roof screws with yellow zinc plating and bonded EPDM washer for reliable leak protection. Full sizes available, hex head design for fast installation. Trusted by global buyers with 1M+ USD annual export. Customizable lengths and packaging.

US$ 900 - 1050 MOQ: 1 Ton

Key Specifications

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Material:

Other, Carbon Steel C1022A

Surface Finish:

Yellow Zinc Plated

Head Type:

Hex Head

Contact Supplier Request Quote Chat Now

Hefei SENOTECH New Materials Co., Ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Tianjin

Delivery Detail:

30 days

Product Details
Company Profile
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Material Other, Carbon Steel C1022A

Surface Finish Yellow Zinc Plated

Head Type Hex Head

Washer Type EPDM Washer (bonded)

Hardness High Hardness

Size Range Full sizes available (customizable)

Application Roofing, metal roofing, cladding

Drive Type Hex Drive

Color Yellow

Hefei SENOTECH New Materials Co., Ltd is proud to present our Factory Direct Roof Screws Yellow Zinc Hex Head with EPDM Washer C1022A Carbon Steel Full Sizes Available High Hardness. As a trusted trading company established in 2020 with an annual export value of US$1 million to US$1.5 million, we supply high-performance fasteners to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our roof screws are engineered for demanding roofing applications, combining a hardened carbon steel body with a corrosion-resistant yellow zinc finish and a pre-assembled EPDM washer for a secure, weathertight seal. With full size availability and factory-direct pricing, these screws offer an ideal balance of strength, durability, and value.

Key Features & Technical Specifications

High Hardness C1022A Carbon Steel – Heat-treated to achieve excellent core hardness, ensuring the screw can penetrate tough roofing materials (e.g., steel sheets, aluminum, wood) without deformation or breakage.
Yellow Zinc Plated Finish – Provides a bright, uniform coating that offers moderate corrosion resistance suitable for outdoor and humid environments. The plating also enhances lubricity for easier driving.
Built-in EPDM Washer – A high-quality ethylene propylene diene monomer rubber washer is bonded under the hex head. It compresses to form a reliable watertight seal around the screw hole, preventing leaks and protecting against weather elements.
Hex Head Design – Standard hexagon head allows for secure engagement with socket or wrench tools, delivering high torque transmission for fast installation.
Full Sizes Available – We stock a comprehensive range of diameters and lengths (e.g., #12, #14, 1/4", etc.) to accommodate various roof panel thicknesses and insulation layers. Custom lengths are available upon request.
Sharp Point & Sharp Thread – Self-tapping thread geometry reduces installation effort and ensures a tight fit in multiple substrate types.

Parameter	Specification
Material	C1022A Carbon Steel
Surface Treatment	Yellow Zinc Plated
Hardness (Core)	HV 300 – 500 (typical, may vary)
Washer Material	EPDM Rubber
Temperature Range	-40°C to +120°C (washer)
Available Sizes	Diameter: #10 to #15; Length: 20mm to 150mm (full stock)

Customer Benefits

By choosing our yellow zinc hex head roof screws, you gain:

Time Savings – Pre-assembled EPDM washer eliminates extra sealing steps; high hardness reduces driver bit wear and speeds up installation cycles.
Reliable Leak Protection – The EPDM washer maintains elasticity over a wide temperature range, providing long-term sealing performance against rain, snow, and UV exposure.
Versatility – Suitable for metal-to-metal, metal-to-wood, and metal-to- concrete roofing applications. Full sizes mean one supplier can meet diverse project needs.
Cost Efficiency – Factory-direct pricing from Hefei SENOTECH ensures competitive rates without compromising quality. Our annual export volume demonstrates trust from global buyers.

Why Choose Hefei SENOTECH New Materials Co., Ltd? We have been serving international clients since 2020, with an annual export value between US$1 million and US$1.5 million. Our products are shipped to over 12 regional markets including North America, Europe, Asia, Africa, and Oceania. We maintain strict quality control on each batch, ensuring consistent hardness, plating adhesion, and washer bond strength. Whether you need a standard size or a custom specification, our team is ready to support your order with prompt quotations and fast delivery via sea or air. Contact us today for samples or bulk pricing – experience the reliability of SENOTECH roof screws!

Frequently Asked Questions (FAQ)

Q: Are these screws self-drilling?
A: Our roof screws are designed as self-tapping screws; they require a pre-drilled pilot hole in most materials. For self-drilling variants (with drill point), please inquire – we can supply them as a separate option.
Q: What is the corrosion resistance of the yellow zinc plating?
A: Yellow zinc plating provides moderate corrosion protection suitable for dry/indoor applications or sheltered outdoor conditions. For extreme coastal or chemical environments, we recommend our stainless steel or hot-dip galvanized options (available on request).
Q: Can I get screws with different washer colors?
A: Standard EPDM washers are black. Custom colors (e.g., white, grey) can be manufactured for minimum order quantities (MOQ) – please contact our sales team for details.
Q: Do you provide samples before bulk order?
A: Yes, we offer free samples (shipping cost covered by buyer) to evaluate quality and performance. Typical sample lead time is 3-5 working days.
Q: What packaging options are available?
A: Standard packaging is in cartons with inner poly bags, or bulk drums for large quantities. Custom labeling and barcode printing can be arranged upon request.
Q: How do I choose the correct screw length?
A: Select a length that penetrates through the roofing material and into the substrate by at least 15-20mm. Our technical data sheet provides recommended lengths for common panel profiles – available for download or upon request.
Q: Is the EPDM washer bonded or loose?
A: The EPDM washer is factory-assembled under the hex head and is neither removable nor loose during transportation. It is bonded with a high-strength adhesive to ensure it stays in place during driving.